Don't expect any price cuts due to Navi. 5700XT will likely be around 1660TI performance in older games and 1660 in more newer games.
Unless they have nothing to actually sell, which is unlikely for parts based on a mainstream die of a mature process, they aren't going to release Navi parts at less than competitive performance/dollar/watt.
Cards that will use half the power and have more features. Also the rumoured prices are 399$ and 499$. in short they are going to try and sell you yet again, slower cards with much worse perf/watt and lacking lots of features for premium price.
There isn't anything that suggests this. Navi should be much more efficient than GCN and AMD knows they are at a feature disadvantage. Whatever line up is announced later today is going to undercut current NVIDIA prices.
NVIDIA's refreshed lineup will likely take the place of their current mid-range to upper-mainstream cards, and drive down prices of existing stock.
AMD used Strange Brigade as the single only game, a heavily AMD sponsored game that is dead today. In that game a Radeon VII is close to a 2080TI, despite in average a Radeon 7 is closer to a 2070. AMD had trouble enough trying to place it at 2080 on their slides.
Yes, Strange Brigade performance is mostly irrelevant and certainly cherry picked.
So lets use logic here, AMD says Navi is slower than Radeon 7. Radeon 7 is not even 10% faster than 2070. So how can Navi be 10% faster than 2070? PR magic!
From what's been released so far, the Radeon VII should remain their flagship part. Little was said or implied beyond that, and it's not impossible that the top Navi part will be faster in some titles/scenarios and slower in others. The lower VRAM pool and reduced feature set of the new parts could keep the Radeon VII as the more expensive flagship even if it's
not faster than the best (~$500 perhaps, and if it's not this fast, it won't be this expensive) Navi. Afterall, the Radeon VII is essentially a consumer rebrand of the Instinct MI50, while Navi is a consumer focused architecture.
We should find out more later today, but I think it questionable to assume that AMD will try to sell non-competitive parts when they don't have have to.
Regardless, even if AMD stumbles, with Navi is too slow or two expensive, there is still NVIDIA's preemptive refresh, which may well still result in lower prices for their upper mainstream parts, and my recommendation remains the same: If possible, wait until July, when both AMD and NVIDIA's cards are on the table.